Shaw AcuDew Instruction Manual Download Page 1

Page: 1 / 50

AcuTrak & AcuDew

Inline Hygrometer

Dewpoint Transmitter

Instruction Manual

Issue 1

Summary of Contents for AcuDew

Page 1: ...AcuTrak AcuDew Inline Hygrometer Dewpoint Transmitter Instruction Manual Issue 1...

Page 2: ...Low Voltage Directive and its amending Directives And has been designed and manufactured to the following standards EN 61326 1 2013 EN 61326 2 2006 Electrical Equipment for measurement control and La...

Page 3: ...cation 14 Mounting the AcuTrak 15 5 1 Installing the AcuTrak into a Panel 15 AcuDew System Installation 16 6 1 AcuDew Installation Sample Cell Sample System 16 6 2 AcuDew Installation Direct into Proc...

Page 4: ...efit of AutoCal 35 9 2 Types of AutoCal 36 9 4 Known Moisture Level AutoCal Method 2 37 Error Messages 40 Appendix A AcuTrak Setup Menu 41 Appendix B AcuTrak Configuration Sub Menu 42 Appendix C AcuTr...

Page 5: ...e Meters representative from where this unit was purchased You should have received if ordered 1 AcuDew 4 20 mA dewpoint transmitter 1 AcuTrak instrument 1 connecting cable of the length specified on...

Page 6: ...onnection to hazardous electric voltages Ignoring this warning can result in severe personal injury or physical damage To avoid the risk of electric shock and fire the safety instructions of this manu...

Page 7: ...d persons educated or trained to mount operate troubleshoot and validate operation in accordance with safety regulations Operators are persons being familiar with the content of this manual able to ad...

Page 8: ...f personal injury and damage This means there is no electrical shock hazard and the AcuTrak front panel is easily accessible 1 6 Cleaning When disconnected the AcuTrak may be cleaned with a cloth mois...

Page 9: ...s water vapour per million in a gas PPMV Parts water vapour per billion in a gas PPBV Note Check the AcuDew Transmitter label for its factory programmed range 3 0 Connecting the AcuDew Connector Pins...

Page 10: ...uDew turning the locking ring clockwise to secure 3 1 3 Connecting the AcuDew to an AcuTrak The AcuTrak displays a digital readout of the 4 20 mA input signal derived from an attached AcuDew The AcuTr...

Page 11: ...w Normal Operation Note Review the complete manual for further information if necessary Once the AcuDew is properly installed per the instructions contained in this manual use of the AcuDew moisture t...

Page 12: ...d of response Each sensor transmitter is calibrated against standards that are traceable to the NPL The state of the art microprocessor circuitry of the AcuDew transmitter drives its high resolution a...

Page 13: ...e AcuDew requires little or no maintenance and will provide reliable and accurate measurements in most non hazardous general purpose applications 4 1 1 AcuDew Moisture Transmitter Dew Point Range Stan...

Page 14: ...e AcuDew 5 digit 8 segment Red LED indicator relay ON OFF indication Programmed to the range of the AcuDew Process control with 2 adjustable alarm set points and an analogue output Alarm set points ca...

Page 15: ...cuTrak When mounted in front panels the rubber gasket included must be mounted between the panel cut out and the display front to obtain NEMA 4 IP65 ingress protection 5 1 Installing the AcuTrak into...

Page 16: ...as any downstream isolation valves are closed prior to the installation of the transmitter Remove the shipping tube cover from the AcuDew before installing the transmitter Install the AcuDew transmitt...

Page 17: ...ioning of the AcuDew Transmitter Be sure that the process line or sample system if installed is depressurized when installing or uninstalling the AcuDew Transmitter As stated above the AcuDew Transmit...

Page 18: ...be required for every installation MAIN PROCESS LINE 4B P 3 5 4A 6 10 11 2 1 9 8 7 Notes a The sample pipe should be on the upper surface of the horizontal pipe or on a vertical section of pipe where...

Page 19: ...tted from the system If the sample is to be measured at full line pressure and the exhaust vented to atmosphere then valve 4B should be fitted and 4A omitted from the system If measurements are to be...

Page 20: ...s screwed down securely to create a weatherproof seal Open the inlet valve slowly again and by opening all valves after the sensor holder allow a low pressure purge through the whole sample system Not...

Page 21: ...ent necessary would be the alarm set points in the case of the display While the sensor should give several years of operation it is advisable to confirm the calibration from time to time to ensure ac...

Page 22: ...for 4 20 mA Analogue Output Connect to A B and COM for Serial Communication Connector C3 Alarms Alarms Two independent SPCO volt free contacts rated 10 A 240 V AC Connector C2 AC Power 90 250V 50 60H...

Page 23: ...sing the tool supplied with the instrument The power supply wires are retained by screws and care should be taken to ensure that the exposed section of the wire is fully inserted and that no loose str...

Page 24: ...on a separate eight segment LED The instrument is available in AC or DC option The AcuTrak operation is controlled by a four button membrane keypad The user friendly software uses a simple menu select...

Page 25: ...onnected AcuDew in the Primary Display The engineering units are indicated in the Secondary Display The Alarm LED s AL 1 AL 2 will light RED whenever an alarm condition occurs and turn o when the alar...

Page 26: ...ntegers and does not use the dp To leave the numerical part of this routine without saving simply press the key 8 1 Hot Keys Panel Function The Units and Alarms Hot Keys can be restricted using the Pa...

Page 27: ...lashing Use the key to scroll through to the next unit type is displayed e g F Press the key to select the new unit Note Pressing the key at any time escapes the hot key function and returns to the me...

Page 28: ...elect the required sensor range This option is used to match the AcuTrak to the sensor connected to the unit Press the key while rAngE is displayed to enter the submenu The currently selected range is...

Page 29: ...to a dewpoint F Note Pressing the key at any time reverts to the Hot key function back to the measurement display without saving any changes 8 4 2 Choosing the Pressure Units The PUnit sub menu within...

Page 30: ...r No response to turn on or off the Natural Gas correlation If Yes then the sensor linearisation follows a modified curve defined in the Natural Gas correlation If No the sensor follows the ideal gas...

Page 31: ...e using the above example the port will output 4mA when the AcuTrak displays 80 C dewpoint And 20mA when the AcuTrak displays 20 C dewpoint If a sensor is detected as short circuit then the current ou...

Page 32: ...ey to select either the Hi or Lo mA setting Press the key to display the current set point use the and keys to display the new value and key to set the value It is also possible to select a 0 20mA out...

Page 33: ...the hysteresis value Note Pressing the key sets any of the alarm parameter will not revert to the previous value even if the 10 second time out occurs or the key is pressed 8 7 Digital Communication...

Page 34: ...urity Passwords The PASS function allows the user to protect certain functions within the AcuTrak While PASS is displayed press the key to enter the sub menu The unit displays SEtPt Use the key to sel...

Page 35: ...s to confirm selection 8 10 Reset The rESEt sub menu allows the user to reset the instrument back to the default settings If the option is protected the user will be required to enter the password 9 A...

Page 36: ...Dew These are 1 Method 1 Ambient AutoCal Not available on AcuDews with an upper range wet end above 0 C 32 F or 6032ppm v 2 Method 2 Known Moisture Level AutoCal 9 3 Ambient AutoCal Method 1 Not avail...

Page 37: ...Known Moisture Level AutoCal Method 2 Note The only AutoCal method available to AcuDews with a mA upper range wet end above 0 C 32 F or 6032ppm v Pre conditioning the AcuDew for Known Moisture Level A...

Page 38: ...complete Return the screw covering the potentiometer 9 4 3 Pre conditioning in normal location No pre conditioning of the sensors is required leave the AcuDew powered up 9 4 4 Performing an AutoCal in...

Page 39: ...ntenance but if any malfunction is suspected it is advisable to contact your local dealer Should it be necessary at any time or for whatever reason to change either the AcuTrak or AcuDew it should be...

Page 40: ...o Section 7 for more information ALOFF Attempt was made to enter alarm hotkey when alarm is switched off Error High priority unspecified error during value entry Limit a float of invalid subtype Set a...

Page 41: ...00 r ange conf g O vt Pt AL 1 aL 2 r s485 pass paneL r eset Press ESC for more than 3 seconds dp1 dp2 dp3 dp4 dp5 dp6 See Configuration Menu span Hi See Alarms Communication and Password Setup Menu Lo...

Page 42: ...ation Sub Menu Conf g Uni t s PUni t TUni t PSEN PDi sp PSt d t st d gas nt gas C F P bar g PA E3 PSi g C F 000 b P L C F b 000 b 000 b 1556 C Ai r Ar CH4 CO 2 H2 n2 sf 6 UaLue 2897 no yes ESC Press E...

Page 43: ...rm RS485 and Password Setup Sub Menu AL 1 aL 2 r s485 pass Set Pt Hi 800 01 C C t ype ESC Press ESC to return to Setup Menu Lo O f f r eLay DE eN eN Lat ch yES No Hyst 00 Addr bavd 9600 4800 2400 1200...

Page 44: ...tains submenus to fully control behaviour of two independent alarms Defaults are Both alarms set points are set to 0 C Both alarms are set to trigger when rising above the upper limit The relays are d...

Page 45: ...etic Exclusive Or of bytes 5 to 9 RS485 Reply Protocol as seen by AcuTrak Byte Description 0 first Preamble 255 1 255 2 255 3 255 4 255 5 Slave to Master 6 6 Return Address 128 for Address 0 8 bit Ari...

Page 46: ...Reply Status Bit Description 15 first ms Not defined 14 13 12 11 Alarm 2 user to clear 10 Alarm 1 user to clear 9 Alarm 2 8 Alarm 1 7 Not defined 6 Sensor short 5 Not defined 4 3 2 1 0 last ls 46...

Page 47: ...he excess wire Put the wire through the nut gripper grommet and into the body of the connector Locate Ferrules in contacts and tighten screws as per table below Strip back 25 mm of outer sleeve Place...

Page 48: ...18 AcuTrak General Assembly Diagram FRONT SIDE REAR 48...

Page 49: ...1 4 inch OD tube fittings The dimension across the tube fittings will vary for all other size fittings 54 mm 21 8 38 mm 11 2 3 mm 01 8 4 Mounting Holes 5 5 mm 07 32 60 mm 223 64 46 mm 113 16 45 mm 149...

Page 50: ...rs UK Ltd Len Shaw Building Bolton Lane Bradford BD2 1AF England t 44 0 1274 733582 f 44 0 1274 370151 e mail shawmeters com www shawmeters com SHAW MOISTURE METERS UK LTD 2021 AcuTrak AcuDew Instruct...

Search results

Summary of Contents for AcuDew

Reviews:

Related manuals for AcuDew

Brands by name

Popular brands

Shaw AcuDew, Instruction Manual

Search results

Summary of Contents for AcuDew

Reviews:

Related manuals for AcuDew

Brands by name

Popular brands